What Cause the Unround Holes On Drum Brake Linings?
When you get a heavy drum brake pad, you can check the brake pads first. Whether the aperture of the large hole or the small hole is rounded, if the hole of the brake pad is found to be oval The hole should be judged as a defective product, because the elliptical hole is installed when riveting, It is very easy to smash the brake pads.
